What are lambda functions and how are they used in data analysis?

What are lambda functions and how are they used in data analysis?

Lambda functions are small, anonymous functions defined with the keyword 'lambda'. They are often used for data manipulation in libraries like Pandas.

Can you give me an example of a lambda function in Python?

Sure! For instance, you can use a lambda function to square numbers in a list: squared = list(map(lambda x: x**2, numbers)).

How do lambda functions compare to regular functions?

Lambda functions are more concise and can be defined in a single line, while regular functions are defined using 'def' and can include multiple statements.

When should I use lambda functions instead of regular functions?

Use lambda functions for short, simple operations where defining a full function would be unnecessarily verbose.